Page 212 - Adams and Stashak's Lameness in Horses, 7th Edition

178 Chapter 2

Ulnaris
VetBooks.ir Lateral digital
lateralis
muscle
Extensor extensor
carpi radialis muscle
tendon Radiocarpal Radiocarpal
joint joint capsule
Accessory
Middle carpal carpal bone
joint capsule

Middle carpal
joint
Carpometacarpal
joint Fourth metacarpus

Figure 2.178. Lateral view of the palmarolateral injection sites
Figure 2.176. Dorsal approach to the middle carpal joint with for the radiocarpal joint in the standing horse.
the carpus flexed. Needles can be placed either lateral or medial to
the extensor carpi radialis tendon.

Ulnaris
lateralis
muscle
Lateral
digital
extensor
muscle
Extensor
carpi radialis Radiocarpal
tendon Radiocarpal joint capsule Accessory
joint carpal bone
Middle carpal
joint capsule

Middle carpal
joint Fourth
Carpometacarpal metacarpus
joint

Figure 2.179. Lateral view of the palmarolateral injection site for
the middle carpal joint in the standing horse. The palmar joint pouch
can be difficult to palpate without the presence of synovial effusion.
Figure 2.177. Dorsal approach to the radiocarpal joint with the
carpus flexed. Needles can be placed either lateral or medial to the needle is inserted perpendicular to the skin to a depth of
extensor carpi radialis tendon. about 0.5 inches (1.2 cm).
The palmarolateral approach to the middle carpal joint
is best used if the joint is distended (Figure 2.179; Video Elbow Joint
2.33). With distension the joint capsule is superficial and There are three major approaches to the elbow joint:
protrudes palmar and lateral to the ulnar and fourth car­ lateral, caudolateral, and caudal. The lateral approach is
pal bones distal to the accessory carpal bone. The injection within the radiohumeral articulation, whereas the cau­
site is approximately 1 inch (2.5 cm) distal to the site of dolateral and caudal approaches are within the humeroul­
injection of the radiocarpal joint. 2,75 A 1‐inch, 20‐gauge nar articulation. All three techniques are best performed